CVE-2026-79705

Published: Sep 15, 2026Modified: Nov 6, 2026

4.5

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N

Exploitability: 0.9 / Impact: 3.6

Source: secalert@redhat.com (Secondary)

Description

A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://access.redhat.com/errata/RHSA-2026:74861

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-79705

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2523419

Source: secalert@redhat.com

Timeline

No history available yet.